topic Re: Starting process executes all tasks in Alfresco Archive

Starting process executes all tasks

sgarbaciak — Mon, 22 Aug 2011 08:49:28 GMT

I've created process with two task MailTask and ScriptTask (execute script task take 2 minutes). I start the process ProcessInstance processInstance = runtimeService.startProcessInstanceById(processId)‍ and get the processInstance after all tasks were executed. Is this normal behaviour in Activiti?

Re: Starting process executes all tasks

gant — Mon, 22 Aug 2011 13:47:38 GMT

Hi,

This is the normal behaviour, as long as you don't have wait states (user task, receive task) in your process model, the process is executed synchronously. If your process contains wait states, the process runs to the first wait state and gets persisted there, the startProcessXXX() method then returns.

regards,
michael

Re: Starting process executes all tasks

sgarbaciak — Tue, 23 Aug 2011 07:39:50 GMT

Thanks for explanation. So I have second question: I plan to implement complex ScriptTask (aproximetly it takes 3-5 hours) after start process. Is there any method to run this script asynchronously? I need a information that process start properly and after that in background execute ScriptTask.

Re: Starting process executes all tasks

trademak — Tue, 23 Aug 2011 09:54:18 GMT

Hi,

Sure. What you can do is include a receive task before the complex script task. Then, when the process is started you get the process instance info back and then you can signal the process instance in a separate thread or Java 6 Future to let the script task run asynchronously.

Best regards,

Re: Starting process executes all tasks

ronald_van_kuij — Tue, 23 Aug 2011 15:42:49 GMT

or vote for ACT-126